MARC
type: MusicGroup
description: Redirect MARC Train
popularity: 5
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a6dc057d459ed831c87f73c107649b59625cf4148a5f2ea6064f510eb917a1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c95c2c05-cb41-4959-9dc6-9ab398eae381.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c95c2c05-cb41-4959-9dc6-9ab398eae381.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c95c2c05-cb41-4959-9dc6-9ab398eae381
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6dc057d459ed831c87f73c107649b59625cf4148a5f2ea6064f510eb917a1a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c95c2c05-cb41-4959-9dc6-9ab398eae381.json and https://artists.proofprofile.net/proofs/artist/c95c2c05-cb41-4959-9dc6-9ab398eae381.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: IF REMEMBERED
  type: MusicAlbum
  date published: 2025-02-14
album: GIVING FALSE HOPE
  type: MusicAlbum
  date published: 2025-02-14
album: GONE DISAPPEAR
  type: MusicAlbum
  date published: 2025-02-14
album: FAR AWAY FROM ME
  type: MusicAlbum
  date published: 2025-02-14
album: IF YOU REMEMBER HIM
  type: MusicAlbum
  date published: 2025-02-14
album: FEELING OF LOVE
  type: MusicAlbum
  date published: 2025-02-14
album: DESTROYED HOPE
  type: MusicAlbum
  date published: 2025-02-14
album: DO NOT RETURN
  type: MusicAlbum
  date published: 2025-02-14
album: YOUR LOVE IS FAKE
  type: MusicAlbum
  date published: 2025-02-14
album: night butterfly
  type: MusicAlbum
  date published: 2025-02-14
album: LOVE HOPE
  type: MusicAlbum
  date published: 2025-02-14
album: fear of losing
  type: MusicAlbum
  date published: 2025-02-28
album: Daughters
  type: MusicAlbum
  date published: 2025-02-28
album: so precious life
  type: MusicAlbum
  date published: 2025-03-15
  track: so precious life
    type: MusicRecording
    duration: PT6M41S
    duration ms: 401307
    explicit: false
    by artist: MARC
    in album: so precious life
      type: MusicAlbum
      date published: 2025-03-15
    isrc code: GXD7G2589750
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:14:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc155086d4ecae5849b0476a614754ec924a51bbee1c80620a2c71926d524661a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958742
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958742
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXD7G2589750
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T14:09:34Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc155086d4ecae5849b0476a614754ec924a51bbee1c80620a2c71926d524661a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXD7G2589750.
      date published: 2026-07-19T14:09:34Z
    audio: so precious life
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.189
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.497
      additional property: Energy
        type: PropertyValue
        value: 0.362
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.711
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.097
      additional property: Liveness
        type: PropertyValue
        value: 0.162
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.289
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.681
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Tide is about to turn
  type: MusicAlbum
  date published: 2025-07-24
album: Everywhere I go
  type: MusicAlbum
  date published: 2025-07-27
album: Retter- Retter- Rettersburg
  type: MusicAlbum
  date published: 2025-07-27
album: Velvet Booth
  type: MusicAlbum
  date published: 2025-08-01
album: Kein Kreis, kein Problem
  type: MusicAlbum
  date published: 2025-08-03
album: TraumAnBAHNung Verspätung aus vorausgegangener Fahrt
  type: MusicAlbum
  date published: 2025-08-04
album: Keyhole Kingdom
  type: MusicAlbum
  date published: 2025-08-11
album: Her Side His Logic
  type: MusicAlbum
  date published: 2025-08-19
album: Desert Fox
  type: MusicAlbum
  date published: 2025-08-20
album: Desert Disco Choir
  type: MusicAlbum
  date published: 2025-08-23
album: Minaret on Fire
  type: MusicAlbum
  date published: 2025-08-25
album: She stands in the Tides
  type: MusicAlbum
  date published: 2025-09-10